Apparatus for manufacturing a magnetic recording medium

Details Apparatus for manufacturing a magnetic recording medium Apparatus for manufacturing a magnetic recording medium

1983-05-03

1984-05-08

Pianalto, Bernard D.

Coating apparatus

Gas or vapor deposition

Running length work

118 501, 118720, 118729, 118500, 118504, C23C 1308

Patent

active

044468164

ABSTRACT:
An apparatus for manufacturing a magnetic recording medium using vacuum-deposition from an evaporated metal source having a very high efficiency and uniform deposition. The support onto which the magnetic film is to be evaporated is guided and conveyed along a curved path above a molten metal evaporating source at a substantially constant speed. The curved path is shaped such that evaporated metal flow lines connecting a central point on the evaporation surface of the molten metal in the evaporating source to corresponding intersection points on the support form the same angle of incidence with respect to the longitudinal direction of the support for all positions along the support where the film is to be deposited. Endless belt structures including guide rollers and magnets are used to form rising and falling paths for conveying the support along the desired curved path.

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